Gpro Posted July 3, 2012 Share Posted July 3, 2012 My 2nd turbo was blown a few months ago and replaced it, but it was a strange way the way it was blown, the whole compressor fan/fins where disapeared their was nothing their, and on the turbo side the shaft/fins had no play or nothing it spinned perfectly, anyway i replaced the turbo and everything was fine turbo kicked in as it should. now the 2nd turbo won't kick in or maybe it does but can't feel much power but theirs a very loud screaming and can only get around 0.6/0.7 bar out of it. Could the propellers still be in the exhaust and causing this sound/problem? Link to comment Share on other sites More sharing options...
sideexitsupra Posted July 3, 2012 Share Posted July 3, 2012 If the compressor side disappeared it would either be stuck between the turbo and inlet manifold or worse still have gone through the engine. Would be getting properly looked at and inspected if I were you! Link to comment Share on other sites More sharing options...
Swampy442 Posted July 3, 2012 Share Posted July 3, 2012 I think the OP is saying the turbines did the old disappearing act and the compressor ws OK... Is the noise load dependant i.e.can you hear it increase as the turbo spools up? Link to comment Share on other sites More sharing options...
absz Posted July 3, 2012 Share Posted July 3, 2012 your exhaust side turbine will be stuck in the exhaust system somewere acting as a restricter hence low boost Link to comment Share on other sites More sharing options...
Gpro Posted July 3, 2012 Author Share Posted July 3, 2012 This is what i am confused about, when i replaced the turbo is was working fine for about a month. (Just to add is not a boost leak. I done a boost test up to 1.2bar and everything is fine Link to comment Share on other sites More sharing options...
Gpro Posted July 3, 2012 Author Share Posted July 3, 2012 I attached a picture to show you (This is the exhaust side of the blown turbo) Link to comment Share on other sites More sharing options...
Gpro Posted July 3, 2012 Author Share Posted July 3, 2012 I am going to take the exhaust off and see if anything is stuck by the restrictor ring. If not then i am going to asume a fin is broken on my turbo and going to replace the whole turbo unit. Link to comment Share on other sites More sharing options...
Nic Posted July 4, 2012 Share Posted July 4, 2012 The J-spec ceramic turbine wheels usually shatter and are spat out of the tail pipe as shrapnel, mine blew on the dyno fortunately no one was stood behind the car at the time! Link to comment Share on other sites More sharing options...
Nic Posted July 4, 2012 Share Posted July 4, 2012 My 2nd turbo was blown a few months ago and replaced it, but it was a strange way the way it was blown, the whole compressor fan/fins where disapeared their was nothing their, and on the turbo side the shaft/fins had no play or nothing it spinned perfectly, anyway i replaced the turbo and everything was fine turbo kicked in as it should. now the 2nd turbo won't kick in or maybe it does but can't feel much power but theirs a very loud screaming and can only get around 0.6/0.7 bar out of it. Could the propellers still be in the exhaust and causing this sound/problem? I'd check all the vacuum hoses first, some threads that may help http://www.mkivsupra.net/vbb/showthread.php?27904-Sequential-turbo-problems&highlight=sequential http://www.mkivsupra.net/vbb/showthread.php?35926-The-sequential-system&highlight=sequential http://www.mkivsupra.net/vbb/showthread.php?35924-Sequential-turbo-hoses&highlight=sequential Link to comment Share on other sites More sharing options...
Gpro Posted July 4, 2012 Author Share Posted July 4, 2012 I have checked all the hoses everything seems to be fine. i also checked all the actuators and they seem to be working as they should. I am down to 2 things. either the turbine is stuck in the exhaust by the restrictor ring or a fin is broken on my turbo and won't boost properly but its not doing the death whine. its different sound. Link to comment Share on other sites More sharing options...
Lude Posted July 4, 2012 Share Posted July 4, 2012 what sound isit mate? isit the same sound as the never ending problem i have? i think mine is a leak by the sounds, only comes on when 1st turbo is coming in, ive put a brand new turbo on thinking it was broke but sound still remains... http://www.mkivsupra.net/vbb/showthread.php?264246-boost-whistling-issue-not-boost-leak/page3 is that like yours? Link to comment Share on other sites More sharing options...
Gpro Posted July 4, 2012 Author Share Posted July 4, 2012 what sound isit mate? isit the same sound as the never ending problem i have? i think mine is a leak by the sounds, only comes on when 1st turbo is coming in, ive put a brand new turbo on thinking it was broke but sound still remains... http://www.mkivsupra.net/vbb/showthread.php?264246-boost-whistling-issue-not-boost-leak/page3 is that like yours? Yes its a similar sound to that but 10 times louder. Its when my 2nd turbo kicks in. It sounds fine with the 1st turbo Link to comment Share on other sites More sharing options...
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